21987750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1543}}^1$

素因数の和:1582

約数の個数: 64

約数和(自身を含む): 57807360

約数和(自身を除く): 35819610

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 25, 30, 38, 50, 57, 75, 95, 114, 125, 150, 190, 250, 285, 375, 475, 570, 750, 950, 1425, 1543, 2375, 2850, 3086, 4629, 4750, 7125, 7715, 9258, 14250, 15430, 23145, 29317, 38575, 46290, 58634, 77150, 87951, 115725, 146585, 175902, 192875, 231450, 293170, 385750, 439755, 578625, 732925, 879510, 1157250, 1465850, 2198775, 3664625, 4397550, 7329250, 10993875, 21987750]

約数ペア:

[(1, 21987750), (2, 10993875), (3, 7329250), (5, 4397550), (6, 3664625), (10, 2198775), (15, 1465850), (19, 1157250), (25, 879510), (30, 732925), (38, 578625), (50, 439755), (57, 385750), (75, 293170), (95, 231450), (114, 192875), (125, 175902), (150, 146585), (190, 115725), (250, 87951), (285, 77150), (375, 58634), (475, 46290), (570, 38575), (750, 29317), (950, 23145), (1425, 15430), (1543, 14250), (2375, 9258), (2850, 7715), (3086, 7125), (4629, 4750)]