21062340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9001}}^1$

素因数の和:9029

約数の個数: 72

約数和(自身を含む): 68811288

約数和(自身を除く): 47748948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9001, 18002, 27003, 36004, 45005, 54006, 81009, 90010, 108012, 117013, 135015, 162018, 180020, 234026, 270030, 324036, 351039, 405045, 468052, 540060, 585065, 702078, 810090, 1053117, 1170130, 1404156, 1620180, 1755195, 2106234, 2340260, 3510390, 4212468, 5265585, 7020780, 10531170, 21062340]

約数ペア:

[(1, 21062340), (2, 10531170), (3, 7020780), (4, 5265585), (5, 4212468), (6, 3510390), (9, 2340260), (10, 2106234), (12, 1755195), (13, 1620180), (15, 1404156), (18, 1170130), (20, 1053117), (26, 810090), (30, 702078), (36, 585065), (39, 540060), (45, 468052), (52, 405045), (60, 351039), (65, 324036), (78, 270030), (90, 234026), (117, 180020), (130, 162018), (156, 135015), (180, 117013), (195, 108012), (234, 90010), (260, 81009), (390, 54006), (468, 45005), (585, 36004), (780, 27003), (1170, 18002), (2340, 9001)]