21073000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1621}}^1$

素因数の和:1655

約数の個数: 64

約数和(自身を含む): 53136720

約数和(自身を除く): 32063720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1621, 1625, 2600, 3242, 3250, 6484, 6500, 8105, 12968, 13000, 16210, 21073, 32420, 40525, 42146, 64840, 81050, 84292, 105365, 162100, 168584, 202625, 210730, 324200, 405250, 421460, 526825, 810500, 842920, 1053650, 1621000, 2107300, 2634125, 4214600, 5268250, 10536500, 21073000]

約数ペア:

[(1, 21073000), (2, 10536500), (4, 5268250), (5, 4214600), (8, 2634125), (10, 2107300), (13, 1621000), (20, 1053650), (25, 842920), (26, 810500), (40, 526825), (50, 421460), (52, 405250), (65, 324200), (100, 210730), (104, 202625), (125, 168584), (130, 162100), (200, 105365), (250, 84292), (260, 81050), (325, 64840), (500, 42146), (520, 40525), (650, 32420), (1000, 21073), (1300, 16210), (1621, 13000), (1625, 12968), (2600, 8105), (3242, 6500), (3250, 6484)]