21729528

素因数分解:

$2^3\times 3^2\times {\mathrm{89}}^1\times {\mathrm{3391}}^1$

素因数の和:3492

約数の個数: 48

約数和(自身を含む): 59529600

約数和(自身を除く): 37800072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 89, 178, 267, 356, 534, 712, 801, 1068, 1602, 2136, 3204, 3391, 6408, 6782, 10173, 13564, 20346, 27128, 30519, 40692, 61038, 81384, 122076, 244152, 301799, 603598, 905397, 1207196, 1810794, 2414392, 2716191, 3621588, 5432382, 7243176, 10864764, 21729528]

約数ペア:

[(1, 21729528), (2, 10864764), (3, 7243176), (4, 5432382), (6, 3621588), (8, 2716191), (9, 2414392), (12, 1810794), (18, 1207196), (24, 905397), (36, 603598), (72, 301799), (89, 244152), (178, 122076), (267, 81384), (356, 61038), (534, 40692), (712, 30519), (801, 27128), (1068, 20346), (1602, 13564), (2136, 10173), (3204, 6782), (3391, 6408)]