21435975

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2887}}^1$

素因数の和:2917

約数の個数: 48

約数和(自身を含む): 42973440

約数和(自身を除く): 21537465

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2887, 7425, 8661, 14435, 25983, 31757, 43305, 72175, 77949, 95271, 129915, 158785, 216525, 285813, 389745, 476355, 649575, 793925, 857439, 1429065, 1948725, 2381775, 4287195, 7145325, 21435975]

約数ペア:

[(1, 21435975), (3, 7145325), (5, 4287195), (9, 2381775), (11, 1948725), (15, 1429065), (25, 857439), (27, 793925), (33, 649575), (45, 476355), (55, 389745), (75, 285813), (99, 216525), (135, 158785), (165, 129915), (225, 95271), (275, 77949), (297, 72175), (495, 43305), (675, 31757), (825, 25983), (1485, 14435), (2475, 8661), (2887, 7425)]