19211970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 48242304

約数和(自身を除く): 29030334

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 53, 86, 106, 129, 159, 215, 258, 265, 281, 318, 430, 530, 562, 645, 795, 843, 1290, 1405, 1590, 1686, 2279, 2810, 4215, 4558, 6837, 8430, 11395, 12083, 13674, 14893, 22790, 24166, 29786, 34185, 36249, 44679, 60415, 68370, 72498, 74465, 89358, 120830, 148930, 181245, 223395, 362490, 446790, 640399, 1280798, 1921197, 3201995, 3842394, 6403990, 9605985, 19211970]

約数ペア:

[(1, 19211970), (2, 9605985), (3, 6403990), (5, 3842394), (6, 3201995), (10, 1921197), (15, 1280798), (30, 640399), (43, 446790), (53, 362490), (86, 223395), (106, 181245), (129, 148930), (159, 120830), (215, 89358), (258, 74465), (265, 72498), (281, 68370), (318, 60415), (430, 44679), (530, 36249), (562, 34185), (645, 29786), (795, 24166), (843, 22790), (1290, 14893), (1405, 13674), (1590, 12083), (1686, 11395), (2279, 8430), (2810, 6837), (4215, 4558)]