21314020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:282

約数の個数: 96

約数和(自身を含む): 56448000

約数和(自身を除く): 35133980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 239, 245, 260, 343, 364, 455, 478, 490, 637, 686, 910, 956, 980, 1195, 1274, 1372, 1673, 1715, 1820, 2390, 2548, 3107, 3185, 3346, 3430, 4459, 4780, 6214, 6370, 6692, 6860, 8365, 8918, 11711, 12428, 12740, 15535, 16730, 17836, 21749, 22295, 23422, 31070, 33460, 43498, 44590, 46844, 58555, 62140, 81977, 86996, 89180, 108745, 117110, 152243, 163954, 217490, 234220, 304486, 327908, 409885, 434980, 608972, 761215, 819770, 1065701, 1522430, 1639540, 2131402, 3044860, 4262804, 5328505, 10657010, 21314020]

約数ペア:

[(1, 21314020), (2, 10657010), (4, 5328505), (5, 4262804), (7, 3044860), (10, 2131402), (13, 1639540), (14, 1522430), (20, 1065701), (26, 819770), (28, 761215), (35, 608972), (49, 434980), (52, 409885), (65, 327908), (70, 304486), (91, 234220), (98, 217490), (130, 163954), (140, 152243), (182, 117110), (196, 108745), (239, 89180), (245, 86996), (260, 81977), (343, 62140), (364, 58555), (455, 46844), (478, 44590), (490, 43498), (637, 33460), (686, 31070), (910, 23422), (956, 22295), (980, 21749), (1195, 17836), (1274, 16730), (1372, 15535), (1673, 12740), (1715, 12428), (1820, 11711), (2390, 8918), (2548, 8365), (3107, 6860), (3185, 6692), (3346, 6370), (3430, 6214), (4459, 4780)]