18948825

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 39693888

約数和(自身を除く): 20745063

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 53, 63, 75, 105, 159, 175, 225, 227, 265, 315, 371, 477, 525, 681, 795, 1113, 1135, 1325, 1575, 1589, 1855, 2043, 2385, 3339, 3405, 3975, 4767, 5565, 5675, 7945, 9275, 10215, 11925, 12031, 14301, 16695, 17025, 23835, 27825, 36093, 39725, 51075, 60155, 71505, 83475, 84217, 108279, 119175, 180465, 252651, 300775, 357525, 421085, 541395, 757953, 902325, 1263255, 2105425, 2706975, 3789765, 6316275, 18948825]

約数ペア:

[(1, 18948825), (3, 6316275), (5, 3789765), (7, 2706975), (9, 2105425), (15, 1263255), (21, 902325), (25, 757953), (35, 541395), (45, 421085), (53, 357525), (63, 300775), (75, 252651), (105, 180465), (159, 119175), (175, 108279), (225, 84217), (227, 83475), (265, 71505), (315, 60155), (371, 51075), (477, 39725), (525, 36093), (681, 27825), (795, 23835), (1113, 17025), (1135, 16695), (1325, 14301), (1575, 12031), (1589, 11925), (1855, 10215), (2043, 9275), (2385, 7945), (3339, 5675), (3405, 5565), (3975, 4767)]