19991376

素因数分解:

$2^4\times 3^2\times {\mathrm{138829}}^1$

素因数の和:138843

約数の個数: 30

約数和(自身を含む): 55948490

約数和(自身を除く): 35957114

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138829, 277658, 416487, 555316, 832974, 1110632, 1249461, 1665948, 2221264, 2498922, 3331896, 4997844, 6663792, 9995688, 19991376]

約数ペア:

[(1, 19991376), (2, 9995688), (3, 6663792), (4, 4997844), (6, 3331896), (8, 2498922), (9, 2221264), (12, 1665948), (16, 1249461), (18, 1110632), (24, 832974), (36, 555316), (48, 416487), (72, 277658), (144, 138829)]