21308650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 47729088

約数和(自身を除く): 26420438

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 43, 50, 53, 55, 85, 86, 106, 110, 170, 187, 215, 265, 275, 374, 425, 430, 473, 530, 550, 583, 731, 850, 901, 935, 946, 1075, 1166, 1325, 1462, 1802, 1870, 2150, 2279, 2365, 2650, 2915, 3655, 4505, 4558, 4675, 4730, 5830, 7310, 8041, 9010, 9350, 9911, 11395, 11825, 14575, 16082, 18275, 19822, 22525, 22790, 23650, 25069, 29150, 36550, 38743, 40205, 45050, 49555, 50138, 56975, 77486, 80410, 99110, 113950, 125345, 193715, 201025, 247775, 250690, 387430, 402050, 426173, 495550, 626725, 852346, 968575, 1253450, 1937150, 2130865, 4261730, 10654325, 21308650]

約数ペア:

[(1, 21308650), (2, 10654325), (5, 4261730), (10, 2130865), (11, 1937150), (17, 1253450), (22, 968575), (25, 852346), (34, 626725), (43, 495550), (50, 426173), (53, 402050), (55, 387430), (85, 250690), (86, 247775), (106, 201025), (110, 193715), (170, 125345), (187, 113950), (215, 99110), (265, 80410), (275, 77486), (374, 56975), (425, 50138), (430, 49555), (473, 45050), (530, 40205), (550, 38743), (583, 36550), (731, 29150), (850, 25069), (901, 23650), (935, 22790), (946, 22525), (1075, 19822), (1166, 18275), (1325, 16082), (1462, 14575), (1802, 11825), (1870, 11395), (2150, 9911), (2279, 9350), (2365, 9010), (2650, 8041), (2915, 7310), (3655, 5830), (4505, 4730), (4558, 4675)]