21902010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 57335040

約数和(自身を除く): 35433030

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 89, 130, 178, 195, 267, 390, 445, 534, 631, 890, 1157, 1262, 1335, 1893, 2314, 2670, 3155, 3471, 3786, 5785, 6310, 6942, 8203, 9465, 11570, 16406, 17355, 18930, 24609, 34710, 41015, 49218, 56159, 82030, 112318, 123045, 168477, 246090, 280795, 336954, 561590, 730067, 842385, 1460134, 1684770, 2190201, 3650335, 4380402, 7300670, 10951005, 21902010]

約数ペア:

[(1, 21902010), (2, 10951005), (3, 7300670), (5, 4380402), (6, 3650335), (10, 2190201), (13, 1684770), (15, 1460134), (26, 842385), (30, 730067), (39, 561590), (65, 336954), (78, 280795), (89, 246090), (130, 168477), (178, 123045), (195, 112318), (267, 82030), (390, 56159), (445, 49218), (534, 41015), (631, 34710), (890, 24609), (1157, 18930), (1262, 17355), (1335, 16406), (1893, 11570), (2314, 9465), (2670, 8203), (3155, 6942), (3471, 6310), (3786, 5785)]