21889790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7321}}^1$

素因数の和:7364

約数の個数: 32

約数和(自身を含む): 44283456

約数和(自身を除く): 22393666

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7321, 14642, 36605, 73210, 95173, 168383, 190346, 336766, 475865, 841915, 951730, 1683830, 2188979, 4377958, 10944895, 21889790]

約数ペア:

[(1, 21889790), (2, 10944895), (5, 4377958), (10, 2188979), (13, 1683830), (23, 951730), (26, 841915), (46, 475865), (65, 336766), (115, 190346), (130, 168383), (230, 95173), (299, 73210), (598, 36605), (1495, 14642), (2990, 7321)]