21639900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1361}}^1$

素因数の和:1431

約数の個数: 72

約数和(自身を含む): 63839664

約数和(自身を除く): 42199764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 53, 60, 75, 100, 106, 150, 159, 212, 265, 300, 318, 530, 636, 795, 1060, 1325, 1361, 1590, 2650, 2722, 3180, 3975, 4083, 5300, 5444, 6805, 7950, 8166, 13610, 15900, 16332, 20415, 27220, 34025, 40830, 68050, 72133, 81660, 102075, 136100, 144266, 204150, 216399, 288532, 360665, 408300, 432798, 721330, 865596, 1081995, 1442660, 1803325, 2163990, 3606650, 4327980, 5409975, 7213300, 10819950, 21639900]

約数ペア:

[(1, 21639900), (2, 10819950), (3, 7213300), (4, 5409975), (5, 4327980), (6, 3606650), (10, 2163990), (12, 1803325), (15, 1442660), (20, 1081995), (25, 865596), (30, 721330), (50, 432798), (53, 408300), (60, 360665), (75, 288532), (100, 216399), (106, 204150), (150, 144266), (159, 136100), (212, 102075), (265, 81660), (300, 72133), (318, 68050), (530, 40830), (636, 34025), (795, 27220), (1060, 20415), (1325, 16332), (1361, 15900), (1590, 13610), (2650, 8166), (2722, 7950), (3180, 6805), (3975, 5444), (4083, 5300)]