21369323

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:155

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 4177429

約数列:

[1, 17, 23, 31, 41, 43, 391, 527, 697, 713, 731, 943, 989, 1271, 1333, 1763, 12121, 16031, 16813, 21607, 22661, 29233, 29971, 30659, 40549, 54653, 496961, 521203, 689333, 929101, 1257019, 21369323]

約数ペア:

[(1, 21369323), (17, 1257019), (23, 929101), (31, 689333), (41, 521203), (43, 496961), (391, 54653), (527, 40549), (697, 30659), (713, 29971), (731, 29233), (943, 22661), (989, 21607), (1271, 16813), (1333, 16031), (1763, 12121)]