21429420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4013}}^1$

素因数の和:4114

約数の個数: 48

約数和(自身を含む): 60691680

約数和(自身を除く): 39262260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 4013, 5340, 8026, 12039, 16052, 20065, 24078, 40130, 48156, 60195, 80260, 120390, 240780, 357157, 714314, 1071471, 1428628, 1785785, 2142942, 3571570, 4285884, 5357355, 7143140, 10714710, 21429420]

約数ペア:

[(1, 21429420), (2, 10714710), (3, 7143140), (4, 5357355), (5, 4285884), (6, 3571570), (10, 2142942), (12, 1785785), (15, 1428628), (20, 1071471), (30, 714314), (60, 357157), (89, 240780), (178, 120390), (267, 80260), (356, 60195), (445, 48156), (534, 40130), (890, 24078), (1068, 20065), (1335, 16052), (1780, 12039), (2670, 8026), (4013, 5340)]