21174348

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 54785808

約数和(自身を除く): 33611460

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 169, 197, 212, 318, 338, 394, 507, 591, 636, 676, 689, 788, 1014, 1182, 1378, 2028, 2067, 2364, 2561, 2756, 4134, 5122, 7683, 8268, 8957, 10244, 10441, 15366, 17914, 20882, 26871, 30732, 31323, 33293, 35828, 41764, 53742, 62646, 66586, 99879, 107484, 125292, 133172, 135733, 199758, 271466, 399516, 407199, 542932, 814398, 1628796, 1764529, 3529058, 5293587, 7058116, 10587174, 21174348]

約数ペア:

[(1, 21174348), (2, 10587174), (3, 7058116), (4, 5293587), (6, 3529058), (12, 1764529), (13, 1628796), (26, 814398), (39, 542932), (52, 407199), (53, 399516), (78, 271466), (106, 199758), (156, 135733), (159, 133172), (169, 125292), (197, 107484), (212, 99879), (318, 66586), (338, 62646), (394, 53742), (507, 41764), (591, 35828), (636, 33293), (676, 31323), (689, 30732), (788, 26871), (1014, 20882), (1182, 17914), (1378, 15366), (2028, 10441), (2067, 10244), (2364, 8957), (2561, 8268), (2756, 7683), (4134, 5122)]