21291363940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{92789}}^1$

素因数の和:92965

約数の個数: 96

約数和(自身を含む): 56119392000

約数和(自身を除く): 34828028060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 149, 154, 220, 298, 308, 385, 596, 745, 770, 1043, 1490, 1540, 1639, 2086, 2980, 3278, 4172, 5215, 6556, 8195, 10430, 11473, 16390, 20860, 22946, 32780, 45892, 57365, 92789, 114730, 185578, 229460, 371156, 463945, 649523, 927890, 1020679, 1299046, 1855780, 2041358, 2598092, 3247615, 4082716, 5103395, 6495230, 7144753, 10206790, 12990460, 13825561, 14289506, 20413580, 27651122, 28579012, 35723765, 55302244, 69127805, 71447530, 96778927, 138255610, 142895060, 152081171, 193557854, 276511220, 304162342, 387115708, 483894635, 608324684, 760405855, 967789270, 1064568197, 1520811710, 1935578540, 2129136394, 3041623420, 4258272788, 5322840985, 10645681970, 21291363940]

約数ペア:

[(1, 21291363940), (2, 10645681970), (4, 5322840985), (5, 4258272788), (7, 3041623420), (10, 2129136394), (11, 1935578540), (14, 1520811710), (20, 1064568197), (22, 967789270), (28, 760405855), (35, 608324684), (44, 483894635), (55, 387115708), (70, 304162342), (77, 276511220), (110, 193557854), (140, 152081171), (149, 142895060), (154, 138255610), (220, 96778927), (298, 71447530), (308, 69127805), (385, 55302244), (596, 35723765), (745, 28579012), (770, 27651122), (1043, 20413580), (1490, 14289506), (1540, 13825561), (1639, 12990460), (2086, 10206790), (2980, 7144753), (3278, 6495230), (4172, 5103395), (5215, 4082716), (6556, 3247615), (8195, 2598092), (10430, 2041358), (11473, 1855780), (16390, 1299046), (20860, 1020679), (22946, 927890), (32780, 649523), (45892, 463945), (57365, 371156), (92789, 229460), (114730, 185578)]