21831030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:470

約数の個数: 96

約数和(自身を含む): 62584704

約数和(自身を除く): 40753674

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 47, 65, 78, 90, 94, 117, 130, 141, 195, 234, 235, 282, 390, 397, 423, 470, 585, 611, 705, 794, 846, 1170, 1191, 1222, 1410, 1833, 1985, 2115, 2382, 3055, 3573, 3666, 3970, 4230, 5161, 5499, 5955, 6110, 7146, 9165, 10322, 10998, 11910, 15483, 17865, 18330, 18659, 25805, 27495, 30966, 35730, 37318, 46449, 51610, 54990, 55977, 77415, 92898, 93295, 111954, 154830, 167931, 186590, 232245, 242567, 279885, 335862, 464490, 485134, 559770, 727701, 839655, 1212835, 1455402, 1679310, 2183103, 2425670, 3638505, 4366206, 7277010, 10915515, 21831030]

約数ペア:

[(1, 21831030), (2, 10915515), (3, 7277010), (5, 4366206), (6, 3638505), (9, 2425670), (10, 2183103), (13, 1679310), (15, 1455402), (18, 1212835), (26, 839655), (30, 727701), (39, 559770), (45, 485134), (47, 464490), (65, 335862), (78, 279885), (90, 242567), (94, 232245), (117, 186590), (130, 167931), (141, 154830), (195, 111954), (234, 93295), (235, 92898), (282, 77415), (390, 55977), (397, 54990), (423, 51610), (470, 46449), (585, 37318), (611, 35730), (705, 30966), (794, 27495), (846, 25805), (1170, 18659), (1191, 18330), (1222, 17865), (1410, 15483), (1833, 11910), (1985, 10998), (2115, 10322), (2382, 9165), (3055, 7146), (3573, 6110), (3666, 5955), (3970, 5499), (4230, 5161)]