21622965

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 45351936

約数和(自身を除く): 23728971

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 49, 65, 73, 91, 93, 105, 147, 155, 195, 217, 219, 245, 273, 365, 403, 455, 465, 511, 637, 651, 735, 949, 1085, 1095, 1209, 1365, 1519, 1533, 1911, 2015, 2263, 2555, 2821, 2847, 3185, 3255, 3577, 4557, 4745, 6045, 6643, 6789, 7595, 7665, 8463, 9555, 10731, 11315, 14105, 14235, 15841, 17885, 19747, 19929, 22785, 29419, 33215, 33945, 42315, 46501, 47523, 53655, 59241, 79205, 88257, 98735, 99645, 110887, 139503, 147095, 205933, 232505, 237615, 296205, 332661, 441285, 554435, 617799, 697515, 1029665, 1441531, 1663305, 3088995, 4324593, 7207655, 21622965]

約数ペア:

[(1, 21622965), (3, 7207655), (5, 4324593), (7, 3088995), (13, 1663305), (15, 1441531), (21, 1029665), (31, 697515), (35, 617799), (39, 554435), (49, 441285), (65, 332661), (73, 296205), (91, 237615), (93, 232505), (105, 205933), (147, 147095), (155, 139503), (195, 110887), (217, 99645), (219, 98735), (245, 88257), (273, 79205), (365, 59241), (403, 53655), (455, 47523), (465, 46501), (511, 42315), (637, 33945), (651, 33215), (735, 29419), (949, 22785), (1085, 19929), (1095, 19747), (1209, 17885), (1365, 15841), (1519, 14235), (1533, 14105), (1911, 11315), (2015, 10731), (2263, 9555), (2555, 8463), (2821, 7665), (2847, 7595), (3185, 6789), (3255, 6643), (3577, 6045), (4557, 4745)]