21997290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{109}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 62916480

約数和(自身を除く): 40919190

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 109, 155, 186, 210, 217, 218, 310, 327, 434, 465, 545, 651, 654, 763, 930, 961, 1085, 1090, 1302, 1526, 1635, 1922, 2170, 2289, 2883, 3255, 3270, 3379, 3815, 4578, 4805, 5766, 6510, 6727, 6758, 7630, 9610, 10137, 11445, 13454, 14415, 16895, 20181, 20274, 22890, 23653, 28830, 33635, 33790, 40362, 47306, 50685, 67270, 70959, 100905, 101370, 104749, 118265, 141918, 201810, 209498, 236530, 314247, 354795, 523745, 628494, 709590, 733243, 1047490, 1466486, 1571235, 2199729, 3142470, 3666215, 4399458, 7332430, 10998645, 21997290]

約数ペア:

[(1, 21997290), (2, 10998645), (3, 7332430), (5, 4399458), (6, 3666215), (7, 3142470), (10, 2199729), (14, 1571235), (15, 1466486), (21, 1047490), (30, 733243), (31, 709590), (35, 628494), (42, 523745), (62, 354795), (70, 314247), (93, 236530), (105, 209498), (109, 201810), (155, 141918), (186, 118265), (210, 104749), (217, 101370), (218, 100905), (310, 70959), (327, 67270), (434, 50685), (465, 47306), (545, 40362), (651, 33790), (654, 33635), (763, 28830), (930, 23653), (961, 22890), (1085, 20274), (1090, 20181), (1302, 16895), (1526, 14415), (1635, 13454), (1922, 11445), (2170, 10137), (2289, 9610), (2883, 7630), (3255, 6758), (3270, 6727), (3379, 6510), (3815, 5766), (4578, 4805)]