21886020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 73382400

約数和(自身を除く): 51496380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 47, 52, 60, 65, 78, 90, 94, 117, 130, 141, 156, 180, 188, 195, 199, 234, 235, 260, 282, 390, 398, 423, 468, 470, 564, 585, 597, 611, 705, 780, 796, 846, 940, 995, 1170, 1194, 1222, 1410, 1692, 1791, 1833, 1990, 2115, 2340, 2388, 2444, 2587, 2820, 2985, 3055, 3582, 3666, 3980, 4230, 5174, 5499, 5970, 6110, 7164, 7332, 7761, 8460, 8955, 9165, 9353, 10348, 10998, 11940, 12220, 12935, 15522, 17910, 18330, 18706, 21996, 23283, 25870, 27495, 28059, 31044, 35820, 36660, 37412, 38805, 46566, 46765, 51740, 54990, 56118, 77610, 84177, 93132, 93530, 109980, 112236, 116415, 121589, 140295, 155220, 168354, 187060, 232830, 243178, 280590, 336708, 364767, 420885, 465660, 486356, 561180, 607945, 729534, 841770, 1094301, 1215890, 1459068, 1683540, 1823835, 2188602, 2431780, 3647670, 4377204, 5471505, 7295340, 10943010, 21886020]

約数ペア:

[(1, 21886020), (2, 10943010), (3, 7295340), (4, 5471505), (5, 4377204), (6, 3647670), (9, 2431780), (10, 2188602), (12, 1823835), (13, 1683540), (15, 1459068), (18, 1215890), (20, 1094301), (26, 841770), (30, 729534), (36, 607945), (39, 561180), (45, 486356), (47, 465660), (52, 420885), (60, 364767), (65, 336708), (78, 280590), (90, 243178), (94, 232830), (117, 187060), (130, 168354), (141, 155220), (156, 140295), (180, 121589), (188, 116415), (195, 112236), (199, 109980), (234, 93530), (235, 93132), (260, 84177), (282, 77610), (390, 56118), (398, 54990), (423, 51740), (468, 46765), (470, 46566), (564, 38805), (585, 37412), (597, 36660), (611, 35820), (705, 31044), (780, 28059), (796, 27495), (846, 25870), (940, 23283), (995, 21996), (1170, 18706), (1194, 18330), (1222, 17910), (1410, 15522), (1692, 12935), (1791, 12220), (1833, 11940), (1990, 10998), (2115, 10348), (2340, 9353), (2388, 9165), (2444, 8955), (2587, 8460), (2820, 7761), (2985, 7332), (3055, 7164), (3582, 6110), (3666, 5970), (3980, 5499), (4230, 5174)]