21006750170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{199931}}^1$

素因数の和:200043

約数の個数: 64

約数和(自身を含む): 46064332800

約数和(自身を除く): 25057582630

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 79, 95, 133, 158, 190, 266, 395, 553, 665, 790, 1106, 1330, 1501, 2765, 3002, 5530, 7505, 10507, 15010, 21014, 52535, 105070, 199931, 399862, 999655, 1399517, 1999310, 2799034, 3798689, 6997585, 7597378, 13995170, 15794549, 18993445, 26590823, 31589098, 37986890, 53181646, 78972745, 110561843, 132954115, 157945490, 221123686, 265908230, 300096431, 552809215, 600192862, 1105618430, 1500482155, 2100675017, 3000964310, 4201350034, 10503375085, 21006750170]

約数ペア:

[(1, 21006750170), (2, 10503375085), (5, 4201350034), (7, 3000964310), (10, 2100675017), (14, 1500482155), (19, 1105618430), (35, 600192862), (38, 552809215), (70, 300096431), (79, 265908230), (95, 221123686), (133, 157945490), (158, 132954115), (190, 110561843), (266, 78972745), (395, 53181646), (553, 37986890), (665, 31589098), (790, 26590823), (1106, 18993445), (1330, 15794549), (1501, 13995170), (2765, 7597378), (3002, 6997585), (5530, 3798689), (7505, 2799034), (10507, 1999310), (15010, 1399517), (21014, 999655), (52535, 399862), (105070, 199931)]