21102540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 63141120

約数和(自身を除く): 42038580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 107, 114, 173, 190, 214, 228, 285, 321, 346, 380, 428, 519, 535, 570, 642, 692, 865, 1038, 1070, 1140, 1284, 1605, 1730, 2033, 2076, 2140, 2595, 3210, 3287, 3460, 4066, 5190, 6099, 6420, 6574, 8132, 9861, 10165, 10380, 12198, 13148, 16435, 18511, 19722, 20330, 24396, 30495, 32870, 37022, 39444, 40660, 49305, 55533, 60990, 65740, 74044, 92555, 98610, 111066, 121980, 185110, 197220, 222132, 277665, 351709, 370220, 555330, 703418, 1055127, 1110660, 1406836, 1758545, 2110254, 3517090, 4220508, 5275635, 7034180, 10551270, 21102540]

約数ペア:

[(1, 21102540), (2, 10551270), (3, 7034180), (4, 5275635), (5, 4220508), (6, 3517090), (10, 2110254), (12, 1758545), (15, 1406836), (19, 1110660), (20, 1055127), (30, 703418), (38, 555330), (57, 370220), (60, 351709), (76, 277665), (95, 222132), (107, 197220), (114, 185110), (173, 121980), (190, 111066), (214, 98610), (228, 92555), (285, 74044), (321, 65740), (346, 60990), (380, 55533), (428, 49305), (519, 40660), (535, 39444), (570, 37022), (642, 32870), (692, 30495), (865, 24396), (1038, 20330), (1070, 19722), (1140, 18511), (1284, 16435), (1605, 13148), (1730, 12198), (2033, 10380), (2076, 10165), (2140, 9861), (2595, 8132), (3210, 6574), (3287, 6420), (3460, 6099), (4066, 5190)]