21270690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1777}}^1$

素因数の和:1816

約数の個数: 96

約数和(自身を含む): 66568320

約数和(自身を除く): 45297630

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 57, 63, 70, 90, 95, 105, 114, 126, 133, 171, 190, 210, 266, 285, 315, 342, 399, 570, 630, 665, 798, 855, 1197, 1330, 1710, 1777, 1995, 2394, 3554, 3990, 5331, 5985, 8885, 10662, 11970, 12439, 15993, 17770, 24878, 26655, 31986, 33763, 37317, 53310, 62195, 67526, 74634, 79965, 101289, 111951, 124390, 159930, 168815, 186585, 202578, 223902, 236341, 303867, 337630, 373170, 472682, 506445, 559755, 607734, 709023, 1012890, 1119510, 1181705, 1418046, 1519335, 2127069, 2363410, 3038670, 3545115, 4254138, 7090230, 10635345, 21270690]

約数ペア:

[(1, 21270690), (2, 10635345), (3, 7090230), (5, 4254138), (6, 3545115), (7, 3038670), (9, 2363410), (10, 2127069), (14, 1519335), (15, 1418046), (18, 1181705), (19, 1119510), (21, 1012890), (30, 709023), (35, 607734), (38, 559755), (42, 506445), (45, 472682), (57, 373170), (63, 337630), (70, 303867), (90, 236341), (95, 223902), (105, 202578), (114, 186585), (126, 168815), (133, 159930), (171, 124390), (190, 111951), (210, 101289), (266, 79965), (285, 74634), (315, 67526), (342, 62195), (399, 53310), (570, 37317), (630, 33763), (665, 31986), (798, 26655), (855, 24878), (1197, 17770), (1330, 15993), (1710, 12439), (1777, 11970), (1995, 10662), (2394, 8885), (3554, 5985), (3990, 5331)]